1202100123021 has 8 divisors (see below), whose sum is σ = 1831771616064. Its totient is φ = 686914356000.

The previous prime is 1202100123001. The next prime is 1202100123067. The reversal of 1202100123021 is 1203210012021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1202100123021 - 2¹⁵ = 1202100090253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202100123001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28621431480 + ... + 28621431521.

It is an arithmetic number, because the mean of its divisors is an integer number (228971452008).

Almost surely, 2^{1202100123021} is an apocalyptic number.

It is an amenable number.

1202100123021 is a deficient number, since it is larger than the sum of its proper divisors (629671493043).

1202100123021 is an equidigital number, since it uses as much as digits as its factorization.

1202100123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57242863011.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1202100123021 its reverse (1203210012021), we get a palindrome (2405310135042).

The spelling of 1202100123021 in words is "one trillion, two hundred two billion, one hundred million, one hundred twenty-three thousand, twenty-one".